The Zero In Wasp trap is Poison-Free and ready baited, simply unscrew the cap, open the bait sachet enclosed, mix with water and position. Ideally place the trap in a sunlit area of the garden, the lure requires an activation period of approximately 24 hours. Place in an area away from children's play areas or other spots where people are likely to gather, to attract wasps away from those areas. The Wasp trap is designed to be hung or to stand on a flat surface in outdoor garden areas. Once full, empty and re-use.